/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.inlong.sort.iceberg.source.reader;

import java.io.Serializable;

/**
 * In FLIP-27 source, SplitReader#fetch() returns a batch of records. Since DataIterator for RowData
 * returns an iterator of reused RowData objects, RecordFactory is needed to (1) create object array
 * that is recyclable via pool. (2) clone RowData element from DataIterator to the batch array.
 *
 * Copy from iceberg-flink:iceberg-flink-1.15:1.3.1
 */
interface RecordFactory<T> extends Serializable {

    /** Create a batch of records */
    T[] createBatch(int batchSize);

    /** Clone record into the specified position of the batch array */
    void clone(T from, T[] batch, int position);
}
